公开(公告)号：US20190078555A1

公开(公告)日：2019-03-14

申请号：US15767258

申请日：2016-10-11

Applicant: Vestas Wind Systems A/S

Inventor： Martin Ansbjerg Kjær ,  Frank Møller Hansen ,  Jacob Hviid Nielsen ,  Jesper Lykkegaard Neubauer ,  Poul Brandt Christensen ,  Fabio Caponetti ,  Christian Skallebæk ,  Robert Grøn-Stevens ,  Kasper Zinck Østergaard

IPC: F03D7/02

Abstract: There is provided a method for controlling a hydraulic pitch force system (220) so as to reduce or eliminate a decrease in hydraulic oil pressure (241) if a hydraulic system parameter value is outside a hydraulic system parameter range, the method comprising: Obtaining (690) the hydraulic system parameter value, and operating the hydraulic pitch force system (220) according to a reduced mode (692) if the hydraulic system parameter value is outside the hydraulic system parameter range, wherein in the reduced mode one or more pitch based activities are reduced (694) or suspended. An advantage thereof may be that it enables keeping the wind turbine in production in certain instances rather than shutting down the wind turbine. In aspects, there is furthermore presented a computer program product, a pitch control system (250) and a wind turbine (100).

公开(公告)号：US11965484B2

公开(公告)日：2024-04-23

申请号：US17402085

申请日：2021-08-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Claus Thy Henningsen ,  Robert Grøn-Stevens

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/0296 ,  F03D7/0224 ,  F03D7/042 ,  F05B2260/74 ,  F05B2260/90 ,  F05B2260/964 ,  F05B2270/328 ,  F05B2270/334 ,  Y02E10/72

Abstract: There is presented a method for damping an edgewise vibration of a rotor blade of a wind turbine, wherein the method comprises measuring at the rotor blade a motion parameter of the edgewise rotor blade vibration, generating based on said motion parameter a blade pitch angle control signal, and damping the edgewise vibration of the rotor blade by pitching the rotor blade according to the blade pitch angle control signal, wherein the blade pitch angle control signal is arranged so that a resulting force on a rotor blade pitched according to the blade pitch angle control signal, in a direction of the edgewise vibration of the rotor blade in a coordinate system, which rotates with a rotor of the wind turbine, is opposite and proportional to the edgewise rotor blade vibration velocity.

公开(公告)号：US11092135B2

公开(公告)日：2021-08-17

申请号：US16308676

申请日：2017-06-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Claus Thy Henningsen ,  Robert Grøn-Stevens

IPC: F03D7/02 ,  F03D7/04

Abstract: There is presented a method for damping an edgewise vibration of a rotor blade of a wind turbine, wherein the method comprises measuring at the rotor blade a motion parameter of the edgewise rotor blade vibration, generating based on said motion parameter a blade pitch angle control signal, and damping the edgewise vibration of the rotor blade by pitching the rotor blade according to the blade pitch angle control signal, wherein the blade pitch angle control signal is arranged so that a resulting force on a rotor blade pitched according to the blade pitch angle control signal, in a direction of the edgewise vibration of the rotor blade in a coordinate system, which rotates with a rotor of the wind turbine, is opposite and proportional to the edgewise rotor blade vibration velocity.

公开(公告)号：US10920747B2

公开(公告)日：2021-02-16

申请号：US15767258

申请日：2016-10-11

Applicant: Vestas Wind Systems A/S

Inventor： Martin Ansbjerg Kjær ,  Frank Møller Hansen ,  Jacob Hviid Nielsen ,  Jesper Lykkegaard Neubauer ,  Poul Brandt Christensen ,  Fabio Caponetti ,  Christian Skallebæk ,  Robert Grøn-Stevens ,  Kasper Zinck Østergaard

IPC: F03D7/02

Abstract: There is provided a method for controlling a hydraulic pitch force system (220) so as to reduce or eliminate a decrease in hydraulic oil pressure (241) if a hydraulic system parameter value is outside a hydraulic system parameter range, the method comprising: Obtaining (690) the hydraulic system parameter value, and operating the hydraulic pitch force system (220) according to a reduced mode (692) if the hydraulic system parameter value is outside the hydraulic system parameter range, wherein in the reduced mode one or more pitch based activities are reduced (694) or suspended. An advantage thereof may be that it enables keeping the wind turbine in production in certain instances rather than shutting down the wind turbine. In aspects, there is furthermore presented a computer program product, a pitch control system (250) and a wind turbine (100).